Method for manufacturing a TiAl blade crown segment for a gas turbine, as well as a corresponding blade crown segment

摘要

Method for the manufacture of a blade crown segment for a gas turbine, especially for an aviation engine, with at least two adjacent blade blades (21, 22), having a single common blade root (25) , and the method comprises the following steps: - forging of at least two blanks (1,2; 3,4), - coupling of the blanks to a blade crown segment by a method for an adhesion joint of materials and, - operation of finishing the composite of the blank by means of a method of erosion of the material characterized by the fact that at least two blank pieces (1,2; 3,4) of a TiAl material are forged, and that in the coupling of the blanks a coupling zone (11) arises, which extends through the center or a central zone of the common blade root (25).